Randy E. Barnett, Was Slavery Unconstitutional Before the Thirteenth Amendment?: Lysander Spooner's Theory of Interpretation, 28 Pacific Law Journal 977 (1997).
James J. Martin, Lysander Spooner: Dissident Among Dissidents, in Men Against the State (Colorado Springs, CO: Ralph Myles Publisher, 1970), pp. 167-201.
Robert M. Cover, Formal Assumptions of the Antislavery Forces, in Justice Accused: Antislavery and the Judicial Process (New Haven and London: Yale University Press, 1975) p.149.
William M. Weicek, Radical Constitutional Antislavery: The Imagined Past, the Remembered Future, in The Sources of Antislavery: Constitutionalism in America, 1760-1848 (Ithaca and London: Cornell University Press, 1977) pp. 249-275.
Lysander Spooner, One of the Old Guard of Abolition Heroes, Dies in His Eightieth Year After a Fortnight's Illness, Obituary, Boston Daily Globe, May 18, 1887.
Unknown Author: Lysander Spooner: Right-Libertarian or Libertarian Socialist?
Spooner's American Mail Letter Company
J.R. Greene, Stamp-ing Around, Athol Daily News, May 4, 1977.
Sherman Lee Pompey, Father of 3-cent Stamp' Spooner fought Post Office, Linn's Weekly Stamp News, Feb.-March 1983.
Lucille J. Goodyear, Spooner vs U.S. Postal System, The American Legion, January 1981.